Test Bank for Microbiology An Evolving Science, 3rd Edition, John Foster & Joan Slonczewski
Chapter1-28 CHAPTER 1: Microbial Life: Origin and Discovery MULTIPLE CHOICE 1. Viruses are: a. infectious agents that infect multi-cellular organisms b. noncellular particles that take over the metabolism of a cell to generate more virus particles c. pathogens that replicate in complex growth media d. cellular particles that belong to the archaea domain e. microbes that consist of lipid membrane enclosed genomes ANS: B DIF: Easy MSC: Remembering
REF: 1.1
TOP: I.A | I.B
2. Analysis of DNA sequences reveals: a. the ancient convergence of two cell types, i.e., prokaryotes and eukaryotes b. prokaryotes and eukaryotes evolved from a common ancestral cell c. that bacteria share common ancestor with archaea, but not with eukarya d. prokaryotes are cells with a nucleus e. the genome of Haemophilus influenzae has about 2 billion base pairs ANS: B DIF: Easy MSC: Remembering
REF: 1.1
TOP: I.A | I.B
3. Which of these groups are considered to be microbes but NOT considered to be cells? a. viruses d. protists b. bacteria e. filamentous fungi c. archaea ANS: A DIF: Easy MSC: Remembering
REF: 1.1
TOP: I.A.i
4. A microbe is commonly defined as: a. a virus that requires a microscope to be seen b. a bacterium that requires a microscope to be seen c. a single-cellular prokaryote that requires a microscope to be seen d. a multicellular eukaryote that requires a microscope to be seen e. a living organism that requires a microscope to be seen ANS: E DIF: Easy MSC: Remembering
REF: 1.1
TOP: I.A.i | I.A.ii
5. Which one of the following statements regarding microbial cells is NOT true?